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<h2><a href="local_closure_goog_storage_mechanism_html5webstorage_test.js.html">html5webstorage_test.js</a></h2>

<pre class="prettyprint lang-js">
<a name="line1"></a>// Copyright 2011 The Closure Library Authors. All Rights Reserved.
<a name="line2"></a>//
<a name="line3"></a>// Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);
<a name="line4"></a>// you may not use this file except in compliance with the License.
<a name="line5"></a>// You may obtain a copy of the License at
<a name="line6"></a>//
<a name="line7"></a>//      http://www.apache.org/licenses/LICENSE-2.0
<a name="line8"></a>//
<a name="line9"></a>// Unless required by applicable law or agreed to in writing, software
<a name="line10"></a>// distributed under the License is distributed on an &quot;AS-IS&quot; BASIS,
<a name="line11"></a>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<a name="line12"></a>// See the License for the specific language governing permissions and
<a name="line13"></a>// limitations under the License.
<a name="line14"></a>
<a name="line15"></a>goog.setTestOnly(&#39;goog.storage.mechanism.HTML5WebStorageTest&#39;);
<a name="line16"></a>goog.provide(&#39;goog.storage.mechanism.HTML5MockStorage&#39;);
<a name="line17"></a>goog.provide(&#39;goog.storage.mechanism.HTML5WebStorageTest&#39;);
<a name="line18"></a>goog.provide(&#39;goog.storage.mechanism.MockThrowableStorage&#39;);
<a name="line19"></a>
<a name="line20"></a>goog.require(&#39;goog.storage.mechanism.ErrorCode&#39;);
<a name="line21"></a>goog.require(&#39;goog.storage.mechanism.HTML5WebStorage&#39;);
<a name="line22"></a>goog.require(&#39;goog.testing.jsunit&#39;);
<a name="line23"></a>
<a name="line24"></a>
<a name="line25"></a>
<a name="line26"></a>/**
<a name="line27"></a> * A minimal WebStorage implementation that throws exceptions for disabled
<a name="line28"></a> * storage. Since we cannot have unit tests running in Safari private mode to
<a name="line29"></a> * test this, we need to mock an exception throwing when trying to set a value.
<a name="line30"></a> *
<a name="line31"></a> * @param {boolean=} opt_isStorageDisabled If true, throws exceptions emulating
<a name="line32"></a> *     Private browsing mode.  If false, storage quota will be marked as
<a name="line33"></a> *     exceeded.
<a name="line34"></a> * @constructor
<a name="line35"></a> */
<a name="line36"></a>goog.storage.mechanism.MockThrowableStorage = function(opt_isStorageDisabled) {
<a name="line37"></a>  this.isStorageDisabled_ = !!opt_isStorageDisabled;
<a name="line38"></a>  this.length = opt_isStorageDisabled ? 0 : 1;
<a name="line39"></a>};
<a name="line40"></a>
<a name="line41"></a>
<a name="line42"></a>/** @override */
<a name="line43"></a>goog.storage.mechanism.MockThrowableStorage.prototype.setItem =
<a name="line44"></a>    function(key, value) {
<a name="line45"></a>  if (this.isStorageDisabled_) {
<a name="line46"></a>    throw goog.storage.mechanism.ErrorCode.STORAGE_DISABLED;
<a name="line47"></a>  } else {
<a name="line48"></a>    throw goog.storage.mechanism.ErrorCode.QUOTA_EXCEEDED;
<a name="line49"></a>  }
<a name="line50"></a>};
<a name="line51"></a>
<a name="line52"></a>
<a name="line53"></a>/** @override */
<a name="line54"></a>goog.storage.mechanism.MockThrowableStorage.prototype.removeItem =
<a name="line55"></a>    function(key) {};
<a name="line56"></a>
<a name="line57"></a>
<a name="line58"></a>/**
<a name="line59"></a> * A very simple, dummy implementation of key(), merely to verify that calls to
<a name="line60"></a> * HTML5WebStorage#key are proxied through.
<a name="line61"></a> * @param {number} index A key index.
<a name="line62"></a> * @return {string} The key associated with that index.
<a name="line63"></a> */
<a name="line64"></a>goog.storage.mechanism.MockThrowableStorage.prototype.key = function(index) {
<a name="line65"></a>  return &#39;dummyKey&#39;;
<a name="line66"></a>};
<a name="line67"></a>
<a name="line68"></a>
<a name="line69"></a>
<a name="line70"></a>/**
<a name="line71"></a> * Provides an HTML5WebStorage wrapper for MockThrowableStorage.
<a name="line72"></a> *
<a name="line73"></a> * @constructor
<a name="line74"></a> * @extends {goog.storage.mechanism.HTML5WebStorage}
<a name="line75"></a> */
<a name="line76"></a>goog.storage.mechanism.HTML5MockStorage = function(opt_isStorageDisabled) {
<a name="line77"></a>  goog.base(
<a name="line78"></a>      this,
<a name="line79"></a>      new goog.storage.mechanism.MockThrowableStorage(opt_isStorageDisabled));
<a name="line80"></a>};
<a name="line81"></a>goog.inherits(goog.storage.mechanism.HTML5MockStorage,
<a name="line82"></a>              goog.storage.mechanism.HTML5WebStorage);
<a name="line83"></a>
<a name="line84"></a>
<a name="line85"></a>function testIsNotAvailableWhenQuotaExceeded() {
<a name="line86"></a>  var storage = new goog.storage.mechanism.HTML5MockStorage(false);
<a name="line87"></a>  assertFalse(storage.isAvailable());
<a name="line88"></a>}
<a name="line89"></a>
<a name="line90"></a>function testIsNotAvailableWhenStorageDisabled() {
<a name="line91"></a>  var storage = new goog.storage.mechanism.HTML5MockStorage(true);
<a name="line92"></a>  assertFalse(storage.isAvailable());
<a name="line93"></a>}
<a name="line94"></a>
<a name="line95"></a>function testSetThrowsExceptionWhenQuotaExceeded() {
<a name="line96"></a>  var storage = new goog.storage.mechanism.HTML5MockStorage(false);
<a name="line97"></a>  var isQuotaExceeded = false;
<a name="line98"></a>  try {
<a name="line99"></a>    storage.set(&#39;foobar&#39;, &#39;1&#39;);
<a name="line100"></a>  } catch (e) {
<a name="line101"></a>    isQuotaExceeded = e == goog.storage.mechanism.ErrorCode.QUOTA_EXCEEDED;
<a name="line102"></a>  }
<a name="line103"></a>  assertTrue(isQuotaExceeded);
<a name="line104"></a>}
<a name="line105"></a>
<a name="line106"></a>function testSetThrowsExceptionWhenStorageDisabled() {
<a name="line107"></a>  var storage = new goog.storage.mechanism.HTML5MockStorage(true);
<a name="line108"></a>  var isStorageDisabled = false;
<a name="line109"></a>  try {
<a name="line110"></a>    storage.set(&#39;foobar&#39;, &#39;1&#39;);
<a name="line111"></a>  } catch (e) {
<a name="line112"></a>    isStorageDisabled = e == goog.storage.mechanism.ErrorCode.STORAGE_DISABLED;
<a name="line113"></a>  }
<a name="line114"></a>  assertTrue(isStorageDisabled);
<a name="line115"></a>}
<a name="line116"></a>
<a name="line117"></a>function testKeyIterationWithKeyMethod() {
<a name="line118"></a>  var storage = new goog.storage.mechanism.HTML5MockStorage(true);
<a name="line119"></a>  assertEquals(&#39;dummyKey&#39;, storage.key(1));
<a name="line120"></a>}
</pre>


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